Title 24 · California Energy Code

How to verify that a device is certified (directories, labels, acceptance)

Q: Is a manufacturer’s sticker on the equipment enough?

No. Only a Commission‑approved label is acceptable as label proof; non‑Commission stickers or marketing labels do not meet § 110.0(b)3(D) .

Q: If a product isn’t in the Commission directory, what exactly do I need?

You need a copy of the manufacturer’s application for certification AND the Energy Commission staff letter of acceptance for that application; together these satisfy § 110.0(b)3(B) .

Q: Can I accept an industry directory entry?

Yes — but only if the directory is published or approved by the Commission (Part 6 allows Commission‑published or approved directories, and Title 20 defines approved trade association directories). Confirm the directory’s approval status before accepting. § 110.0(b)3(A) and § 110.1(b)3 .

A device may be installed only if its certification can be confirmed by the Energy Commission’s approved directory, a manufacturer’s application plus the Commission staff acceptance letter, written confirmation from a Commission‑approved directory publisher, or a Commission‑approved label on the device (see **§ 110.0(b)3**).

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Last reviewed: July 6, 2026

What the code requires — 2–4 sentences

The Part 6 rule is simple: a manufactured system, equipment, appliance or building component may only be installed when the manufacturer’s certification can be confirmed by one of a short list of approved evidences. The only authorized verification methods are the Commission’s directory, the manufacturer’s application plus the Energy Commission staff acceptance letter, written confirmation from a publisher of a Commission‑approved directory, or a Commission‑approved label on the device — see § 110.0(b)3.

The single required step: don’t accept a manufacturer’s word alone — verify certification using a Commission directory, the application+acceptance letter, written publisher confirmation, or a Commission‑approved label. (See § 110.0(b)3.)

Requirements in detail

Key defined terms (first use is bold)

Certified to the Energy Commission — for appliances this means certified under Title 20, § 1606; for other devices it means the manufacturer’s declaration under penalty of perjury that the device meets Part 6 requirements. § 110.0(b) explains the difference.
Directory — a publisher (including the Energy Commission) list that identifies models accepted as compliant; Part 6 requires confirmation from a directory published or approved by the Commission. § 110.0(b)3(A).
Commission‑approved label — a label placed on the device that the Commission has approved as evidence of certification. § 110.0(b)3(D).
Acceptance letter (staff) — the Energy Commission staff’s written letter accepting a manufacturer’s application for certification; the application + letter together are valid proof per § 110.0(b)3(B).

How to verify — step checklist

Identify whether the product is an appliance subject to the Appliance Efficiency Regulations (Title 20 scope) or another device required to be certified under Part 6. § 110.0(b)1–2.
If it is an appliance in Title 20 scope, first check the Energy Commission appliance database. § 110.1(b)1 points to the Energy Commission’s database maintained under Title 20 § 1606 (Energy Commission database URL is provided in the code).
If the model is not listed in the Commission directory, ask the manufacturer for (a) their application for certification and (b) the Commission staff letter of acceptance — together these satisfy § 110.0(b)3(B).
Alternatively, obtain written confirmation from the publisher of a Commission‑approved directory that the exact model is listed and certified (this is acceptable under § 110.0(b)3(C)).
A Commission‑approved label physically on the device is also acceptable proof. Always verify the label is a Commission‑approved label (not merely a manufacturer brand label). § 110.0(b)3(D).

Decision table — which evidence to accept

Decision question	Acceptable evidence (what to collect)	Where to look / get it	Code Reference
Is this appliance certified?	Energy Commission appliance database listing (by model)	Energy Commission appliance database (listed in code)	§ 110.1(b)1
Is this device certified (general Part 6 device)?	Directory entry in a directory published or approved by the Commission	Commission directory or approved trade association directory	§ 110.0(b)3(A)
If not in a directory, is there written acceptance?	Manufacturer’s certification application + Energy Commission staff acceptance letter	Obtain copy from manufacturer or Commission staff	§ 110.0(b)3(B)
Can a third‑party publisher confirm?	Written confirmation from publisher of a Commission‑approved directory	Request written confirmation from the directory publisher	§ 110.0(b)3(C)
Is there a visible device label?	Commission‑approved label affixed to the device (not just manufacturer sticker)	Inspect the device label and cross‑check with Commission guidance	§ 110.0(b)3(D)
Roofing product solar/thermal certification	Product certified and labeled per Title 24, Part 1 Section 10‑113 (roofing label/cert rules)	See Title 24 Part 1 procedures (Section 10‑113 is the controlling Part 1 labeling rule referenced by Part 6)	§ 110.8(i)1 referencing § 10‑113

Notes on the table: the Energy Code repeatedly cross‑references the appliance database and the Part 1 labeling rules when specific products (roofing, fenestration, etc.) have product‑specific labeling programs. See the code cross‑references to Section 10‑113 for roofing products and the Energy Commission database references to Title 20 § 1606 for appliances.

What the code does NOT require

Part 6 expressly states that a builder, designer, owner, operator or enforcing agency is not required to test a certified device to determine compliance with Commission minimum specifications — certification and the authorized proof items are the basis for acceptance. § 110.0(b)3 (Note).

Exceptions & special cases

If the required data are not available through the directories described above, Part 6 allows using default mandatory efficiency levels or Commission‑approved alternate procedures (see § 110.1(c) for when to use alternative verification or field testing). § 110.1(c).
Some product categories have separate labeling/certification paths — e.g., roofing products must be certified and labeled according to Section 10‑113, or else default aged reflectance/emittance values apply (see § 110.8(i) and the Green Building references). If you need the specifics of the Part 1 labeling rules you must consult § 10‑113 in Title 24, Part 1.
Certain acceptance tests are replaced when the manufacturer factory‑certifies that a system was factory‑calibrated and tested (example: air economizers may be exempted from functional testing when certified by the HVAC manufacturer) — see the Acceptance/NA7 exceptions.

Important missing text note: the uploaded files include Part 6 references to Title 20 § 1606 and Title 24, Part 1 § 10‑113 and describe where those rules are used, but the full text of Title 20 § 1606 and Part 1 § 10‑113 was not included in the retrieved files. For the exact procedural steps those sections set out (for example, the format of the Energy Commission application or the labeling format required by § 10‑113), you will need to consult the actual Title 20 and Title 24, Part 1 sources.

Common mistakes

Accepting a manufacturer’s sticker or marketing label that is not a Commission‑approved label. The Code requires a Commission‑approved label to fulfill § 110.0(b)3(D) — a non‑approved sticker is insufficient.
Using an unapproved trade directory or an out‑of‑date listing. Part 6 accepts only the Commission’s directory, a federal equivalent, or an approved trade association directory (see § 110.1(b)). Always verify the directory is Commission‑published/approved. § 110.1(b)1–3.
Missing the acceptance letter: when the device is not in a directory, inspectors sometimes accept a manufacturer’s application alone. The Code requires both the manufacturer’s application and the Commission staff letter of acceptance for proof (§ 110.0(b)3(B)).
Applying product‑specific defaults (e.g., roofing aged reflectance) when the product actually has a valid label or CRRC listing — check for a valid § 10‑113 label or Commission/CRRC listing before using defaults. § 110.8(i)1.

Worked example — concrete scenario

Scenario: You are the inspector for a new retail building. The contractor installs rooftop packaged air conditioners (appliances that fall under Title 20). One model plate reads “Model AC‑X123, Manufacturer Y.”

Step 1 — Is it a Title 20 appliance?

Confirm the appliance category falls within Title 20 scopes (if yes, it must be certified to the Energy Commission per § 110.0(b)1).

Step 2 — Check the Energy Commission appliance database

Search the Energy Commission appliance database for AC‑X123 (the code directs you to use the Commission database maintained under Title 20 § 1606 as the primary source). If AC‑X123 appears with a current acceptance status, record the listing and you have acceptable proof under § 110.1(b)1 and § 110.0(b)3(A).

Step 3 — If it’s not in the database

Ask the contractor for the manufacturer’s application for certification and the Commission staff acceptance letter. If both are provided, you may accept installation per § 110.0(b)3(B).

Step 4 — If the manufacturer points to a trade directory

Verify that the directory is a Commission‑approved trade association directory (Title 20 defines approved trade directories; Part 6 references those definitions). If the publisher provides written confirmation that the model is listed and the publisher is Commission‑approved, that satisfies § 110.0(b)3(C).

Step 5 — Final acceptance documentation

Note the evidence collected (database screenshot or copy of acceptance letter or publisher confirmation or photo of Commission‑approved label) on the Certificate of Acceptance or inspection report. The Energy Code also ties acceptance testing and Certificates of Acceptance to enforcement and permit closeout procedures — be sure to follow the acceptance documentation requirements for the project type.

Related provisions

§ 110.0(b)3 — Permissible methods to confirm certification (directory, application+acceptance letter, publisher confirmation, label).
§ 110.1(b) — Primary use of the Energy Commission appliance database and approved directories for verifying appliance efficiency.
§ 110.8(i)1 — Roofing products: requirement to certify and label thermal emittance and aged solar reflectance to Part 1 § 10‑113.
Title 24, Part 1 — § 10‑113 — (Referenced by Part 6 for product labeling; full Part 1 text not included in the retrieved files.)
Title 20 — § 1606 — (Controls the Energy Commission appliance database and certification procedures for appliances; the Energy Code references this as the source for certified appliance listings. Full Title 20 § 1606 text was not included in the retrieved files.)
Reference appendices NA7 / Certificates of Acceptance — acceptance testing and what must be submitted to the enforcement agency (see NA7 references and Certificate of Acceptance requirements).

Code references

Grounded in the retrieved California Energy Code — click a citation to read the verbatim passage:

§ 25218.5 High relevance — show source text
(b) Certification Requirements for Manufactured Systems, Equipment, Appliances and Building Components.
1. Appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations shall only be installed if they have been certified to the Energy Commission by the manufacturer, pursuant to the provisions of Title 20 California Code of Regulations, Section 1606; or
2. Systems, equipment, appliances and building components that are required by Part 6 or the Reference Appendices to be certified to the Energy Commission, which are not appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations, shall only be installed if they are certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that: A. All the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable requirements of Part 6; and B. The equipment, product, or device was tested using the test procedure specified in Part 6 if applicable
3. The certification status of any system, equipment, appliance or building component shall be confirmed only by reference to: A. A directory published or approved by the Commission; or B. A copy of the application for certification from the manufacturer and the letter of acceptance from the Commission staff; or C. Written confirmation from the publisher of a Commission-approved directory that a device has been certified; or D. A Commission-approved label on the device.
Note: Part 6 does not require a builder, designer, owner, operator, or enforcing agency to test any certified device to determine its compliance with minimum specifications or efficiencies adopted by the Commission.

Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5 ~~, 2~~ 5402.8, and 25943, Public Resources Code.

SECTION 110.1—MANDATORY REQUIREMENTS FOR APPLIANCES

(a) Any appliance regulated by the Appliance Efficiency Regulations, Title 20 California Code of Regulations, Section 1601 et seq., may be installed only if the appliance fully complies with Section 1608(a) of those regulations.

(b) Except for those circumstances described in Section 110.1(c), conformance with efficiency levels required to comply with Part 6 mandatory, prescriptive and performance standards shall be verified utilizing data from either:
1. The Energy Commission’s database of certified appliances maintained pursuant to Title 20 California Code of Regulations Section 1606, and which is available at: www.energy.ca.gov/appliances/database/ ; or
2. An equivalent directory published by a federal agency; or
3. An approved trade association directory as defined in Title 20 California Code of Regulations Section 1606(h).
(c) Conformance with efficiency levels required to comply with Part 6 mandatory, prescriptive and performance standards shall be demonstrated either by default to the mandatory efficiency levels specified in Part 6 or by following procedures approved by the Commission pursuant to Section 10-109 of Title 24, Part 1, when:
1. Data to verify conformance with efficiency levels required to comply with Part 6 mandatory, prescriptive and performance standards is not available pursuant to subdivision (b); or
2. Field verification and diagnostic testing is required for compliance with Part 6 and the Energy Commission has not approved a field verification and diagnostic test protocol that is applicable to the appliance; or
§ 100.1 High relevance — show source text
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ALL OCCUPANCIES—GENERAL PROVISIONS

FIGURE 100.1-A CALIFORNIA CLIMATE ZONES

Climate Zones for Residential and Nonresidential Occupancies

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2 ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE

MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND BUILDING COMPONENTS

SECTION 110.0—SYSTEMS AND EQUIPMENT—GENERAL

Sections 110.1 through 110.12 specify requirements for manufacturing, construction and installation of certain systems, equipment, appliances and building components that are installed in buildings within the scope of Section 100.0(a).

Note: The requirements of Sections 110.0 through 110.12 apply to newly constructed buildings. Sections 141.0 and 150.2 specify which requirements of Sections 110.1 through 110.12 also apply to additions and alterations to existing buildings.

(a) General Requirements. Systems, equipment, appliances and building components shall only be installed in a building within the scope of Section 100.0(a) regulated by Part 6 only if:
1. The manufacturer has certified that the system, equipment, appliances or building component complies with the applicable manufacturing provisions of Sections 110.1 through 110.12; and
2. The system, equipment, appliance or building component complies with all applicable installation provisions of Sections 110.1 through 110.12.
(b) Certification Requirements for Manufactured Systems, Equipment, Appliances and Building Components.
1. Appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations shall only be installed if they have been certified to the Energy Commission by the manufacturer, pursuant to the provisions of Title 20 California Code of Regulations, Section 1606; or
2. Systems, equipment, appliances and building components that are required by Part 6 or the Reference Appendices to be certified to the Energy Commission, which are not appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations, shall only be installed if they are certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that: A. All the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable requirements of Part 6; and B. The equipment, product, or device was tested using the test procedure specified in Part 6 if applicable
3. The certification status of any system, equipment, appliance or building component shall be confirmed only by reference to: A. A directory published or approved by the Commission; or B. A copy of the application for certification from the manufacturer and the letter of acceptance from the Commission staff; or C. Written confirmation from the publisher of a Commission-approved directory that a device has been certified; or D. A Commission-approved label on the device.
Note: Part 6 does not require a builder, designer, owner, operator, or enforcing agency to test any certified device to determine its compliance with minimum specifications or efficiencies adopted by the Commission.
§ 110.1 High relevance — show source text
SECTION 110.1—MANDATORY REQUIREMENTS FOR APPLIANCES

(a) Any appliance regulated by the Appliance Efficiency Regulations, Title 20 California Code of Regulations, Section 1601 et seq., may be installed only if the appliance fully complies with Section 1608(a) of those regulations.

(b) Except for those circumstances described in Section 110.1(c), conformance with efficiency levels required to comply with Part 6 mandatory, prescriptive and performance standards shall be verified utilizing data from either:
1. The Energy Commission’s database of certified appliances maintained pursuant to Title 20 California Code of Regulations Section 1606, and which is available at: www.energy.ca.gov/appliances/database/ ; or
2. An equivalent directory published by a federal agency; or
3. An approved trade association directory as defined in Title 20 California Code of Regulations Section 1606(h).
(c) Conformance with efficiency levels required to comply with Part 6 mandatory, prescriptive and performance standards shall be demonstrated either by default to the mandatory efficiency levels specified in Part 6 or by following procedures approved by the Commission pursuant to Section 10-109 of Title 24, Part 1, when:
1. Data to verify conformance with efficiency levels required to comply with Part 6 mandatory, prescriptive and performance standards is not available pursuant to subdivision (b); or
2. Field verification and diagnostic testing is required for compliance with Part 6 and the Energy Commission has not approved a field verification and diagnostic test protocol that is applicable to the appliance; or
3. The appliance meets the requirements of Section 110.1(a) but has been site-modified in a way that affects its performance; or
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ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND BUILDING COMPONENTS
1. The U.S. Department of Energy has approved a waiver from federal test procedures, pursuant to 10 CFR Section 430.27 or Section 431.401 and that waiver fails to specify how the efficiency of the system shall be determined.
Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5 ~~, 2~~ 5402.8, and 25943, Public Resources Code.

SECTION 110.2—MANDATORY REQUIREMENTS FOR SPACE-CONDITIONING EQUIPMENT

Certification by manufacturers. Any space-conditioning equipment listed in this section may be installed only if the manufacturer has certified to the Commission that the equipment complies with all the applicable requirements of this section.

(a) Efficiency. Equipment shall meet the applicable efficiency requirements in Tables 110.2-A through 110.2-L, subject to the following:
1. If more than one efficiency standard is listed for any equipment in Tables 110.2-A through 110.2-L, the equipment shall meet all the applicable standards that are listed; and
2. If more than one test method is listed in Tables 110.2-A through 110.2-L, the equipment shall comply with the applicable efficiency standard when tested with each listed test method; and
§ 12-72 High relevance — show source text
but are to be samples that have been subjected to the complete production soldering process. The test potential is to be obtained from a suitable transformer, the output voltage of which can be regulated. The potential is to be increased gradually from zero, at the rate, of approximate 75 volts per second, until dielectric breakdown occurs. Three different locations on each sample, with different spacings between conductors, if possible, are to be tested. The locations selected are to be the same for all samples. The average dielectric breakdown potentials for each group of six samples for each location is to be determined. The average value for each location for the samples that have been conditioned is to be not less than 80 percent of the average value for the corresponding location for the samples that have not been conditioned.

RELAYS FOR PROTECTIVE SIGNALING SERVICE

Sec. 12-72-105.

(a) Test conditions. Relays which have not been qualified as approved for use with protective signaling systems by investigation and report from an approved listing agency shall have its suitability for use in a protective signaling system evidenced by an investigation and report by an approved testing laboratory which shall include certification that the relay conforms to the minimum requirements of the California Electrical Code. The test report shall include, but is not limited to:
1. Over- and under-voltage operation per the California Electrical Code.
2. The insulation of coil windings of relays shall be such as to resist the absorption of moisture.
3. Temperature readings on the coil and insulation under normal operation at a constant temperature (temperature may be considered constant when three succeeding readings at not less than 5 minute intervals indicate no change in temperature).
4. Overload test consisting of 50 operations at 115 percent of rated voltage with a test load being that which the relay is to handle.
5. Endurance test consisting of 40,000 cycles of coded or noncoded signal impulses at rated load and voltage.
6. Dielectric strength test without breakdown by application of 60 cycle a.c. at twice rated voltage plus 1,000 volts for a period not less than 1 minute.
(b) Acceptance criteria. There shall be no electrical or mechanical failure, nor any undue pitting, burning or welding of contact during any test.

SEMICONDUCTOR TESTS

Sec. 12-72-106.

(a) General. Semiconductors shall be investigated to determine their suitability for application under all the environmental conditions to which they will be exposed in service.

The performance tests of the complete device are intended to show the effects of these conditions. The prescribed tests may be supplemented where conditions exceeding those represented by the tests indicated herein may be encountered.

(b) Test procedure.
1. Temperature. The system combination is to be connected as in the normal operation test and operated in an oven at 85°C. It is then to be operated in a refrigerator at 0°C. After temperature equilibrium has been maintained in both cases, the unit shall operate as in the normal operation test.
2. Humidity. The system combination is to be connected as in the normal operation test, and placed in a humidity cabinet maintained at 85 percent humidity, 32°C, for a period of 48 hours. At the end of this time, the unit shall operate as in the normal operation test.
3. Transient voltage. The system combination shall be subjected to the transient voltages caused by the collapse of the field of a 2-kilovolt-ampere transformer switched on and off on a random basis for 500 cycles.
4. **Acceptance criteria.
§ 805.5.1.1 Medium relevance — show source text
E 805.5.1.1 Construction Inspection. Prior to functional testing, verify and document the following:

(1) Economizer lockout setpoint is in accordance with this appendix.

(2) Economizer lockout control sensor is located to prevent false readings.

(3) System is designed to provide up to 100 percent outside air without over-pressurizing the building.

(4) For systems with DDC controls lockout sensor(s) are either factory calibrated or field calibrated.

(5) For systems with non-DDC controls, manufacturer’s startup and testing procedures are applied.

E 805.5.1.2 Functional Testing. The functional testing shall be in accordance with the following steps:

Step 1: Disable demand control ventilation systems (where applicable).

Step 2: Enable the economizer, and simulate a cooling demand large enough to drive the economizer fully open. Verify and document the following:

(1) Economizer damper is 100 percent opened and return air damper is 100 percent closed.

(2) Where applicable, verify that the economizer remains 100 percent open where the cooling demand can no longer be met by the economizer alone.

(3) Applicable fans and dampers operate as intended to maintain building pressure.

(4) The unit heating is disabled.

Step 3: Disable the economizer and simulate a cooling demand. Verify and document the following:

(1) Economizer damper shall close to its minimum position.

(2) Applicable fans and dampers shall operate as intended to maintain building pressure.

(3) The unit heating is disabled.

Step 4: Simulate a heating demand, and set the economizer so that it is capable of operating (e.g., actual outdoor air conditions are below lockout setpoint). Verify the economizer is at minimum position.

Step 5: Restore demand control ventilation systems (where applicable) and remove system overrides initiated during the test.

E 805.5.2 Acceptance Criteria. Air economizer controls acceptance criteria shall be as follows:

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), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

APPENDIX E

(1) Where the economizer is factory installed and certified, a valid factory certificate is required for acceptance. No additional equipment tests are necessary.

(2) Air economizer lockout setpoint is in accordance with this appendix. Outside sensor location accurately reads true outdoor air temperature and is not affected by exhaust air or other heat sources.

(3) Sensors are located to achieve the desired control.

(4) During economizer mode, the outdoor air damper shall modulate open to a maximum position and return air damper to 100 percent closed.

(5) The outdoor air damper is 100 percent open before mechanical cooling is enabled and for units 75 000 Btu/h (22 kw) and larger remains at 100 percent open while mechanical cooling is enabled (economizer integration where used for compliance).
§ 5.1. Medium relevance — show source text
(a) Before an occupancy permit is granted, the following equipment and systems shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified by the Reference Nonresidential Appendix NA7. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the equipment and systems meet the acceptance requirements:
1. Outdoor air ventilation systems shall be tested in accordance with NA7.5.1.
2. Constant volume, single zone unitary air conditioning and heat pump unit controls shall be tested in accordance with NA7.5.2.
3. Duct systems that are subject to testing under Section 120.4(g)1, Section 141.0(b)2Di or Section 141.0(b)2Dii shall be tested in accordance with NA7.5.3.
4. Air economizers, DOAS, HRV or ERV systems shall be tested in accordance with NA7.5.4. Exception 1 to Section 120.5(a)4: Air economizers installed by the HVAC system manufacturer and certified to the Commission as being factory calibrated and tested are not required to comply with the Functional Testing section of the air economizer controls acceptance test as described in NA7.5.4.2. Exception 2 to Section 120.5(a)4: The DOAS, HRV, or ERV unit that does not meet the exhaust air heat recovery ratio as specified in Section 140.4(q)1 or does not include bypass or control to disable energy recovery as specified in Section 140.4(q)2.
5. Demand control ventilation systems required by Section 120.1(c)3 shall be tested in accordance with NA7.5.5.
6. Supply fan variable flow controls shall be tested in accordance with NA7.5.6.
7. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9.
8. Boiler or chillers that require isolation controls as specified by Section 140.4(k)2 or 140.4(k)3 shall be tested in accordance with NA7.5.7.
9. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.
10. Automatic demand shed controls shall be tested in accordance with NA7.5.10.
11. Fault Detection and Diagnostics (FDD) for Packaged Direct-Expansion Units shall be tested in accordance with NA7.5.11.
12. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.
13. Distributed Energy Storage DX AC Systems shall be tested in accordance with NA7.5.13.
14. Thermal Energy Storage (TES) Systems shall be tested in accordance with NA7.5.14.
15. Supply air temperature reset controls shall be tested in accordance with NA7.5.15.
16. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.
17. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.
18. Occupant sensing zone controls shall be tested in accordance with NA7.5.17.
19. Conductivity controls and overflow alarms for open and closed-circuit cooling towers shall be tested according to NA7.5.18.

§ 0.293 Medium relevance — show source text

Verify and document the following:
|Step 3: Simulate no cooling load during daytime condition. Verify and document the following:
| |a.
Supply fan operates as per the facility thermostat or control system.|Y / N| |b.
The DES/DXAC and the condensing unit do not run.|| |Step 4: Simulate no cooling load during morning shoulder time period. Verify and document the following:
|Step 4: Simulate no cooling load during morning shoulder time period. Verify and document the following:
| |a.
The DES/DXAC is idle (the condensing unit and the refrigerant pumps remain off).|Y / N**~~|

a. The DES/DXAC is idle (the condensing unit and the refrigerant pumps remain off).	Y / N
B. Calibrating Controls.	Results
a. Verify that you are able to set the proper time and date, as per manufacturer’s installation manual for approved installers.	~~Y / N~~

C. Testing Results.	PASS / FAIL	Col3
Test passes if all answers are yes underFunctional Testing andCalibrating Controls.		

For SI units: 1 metric ton = 1000 kg, 1000 British thermal units per hour = 0.293 kW

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APPENDIX E

CERTIFICATE OF ACCEPTANCE MECH-14A	Col2
Distributed Energy Storage DX AC Systems Acceptance (Page 3 of 3)	Distributed Energy Storage DX AC Systems Acceptance (Page 3 of 3)
Project Name/Address:	Project Name/Address:
System Name or Identification/Tag:	System Location or Area Served:

	PASS: All Construction Inspection responses are complete and all Testing Results responses are “Pass.”
	FAIL: AnyConstruction Inspection responses are incomplete_OR_ there is one or more “Fail” responses in Testing Results section. Provide explanation below. Use and attach additional pages if necessary.

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APPENDIX E

§ 801.0 Medium relevance — show source text

I certify that the information provided on this form substantiates that the construction/installation identified on this form complies with the acceptance requirements indicated in the plans and specifications approved by the enforcement agency, and conforms to the applicable acceptance requirements and procedures specified in Section E 801.0 through Section E 806.0.
I have confirmed that the Installation Certificate(s) for the construction/installation identified on this form has been completed and is posted or made available with the permit(s) issued for the building.
I will ensure that a completed, signed copy of this Certificate of Acceptance shall be posted, or made available with the building permit(s) issued for the building, and made available to the enforcement agency for all applicable inspections. I understand that a signed copy of this Certificate of Acceptance is required to be included with the documentation the builder

provides to the building owner at occupancy.	Col2	Col3	Col4
Company Name:	Company Name:	Company Name:	Phone:
Responsible Person’s Name:	Responsible Person’s Name:	Responsible Person’s Signature:	Responsible Person’s Signature:
License:	Date Signed:	Position With Company (Title):	Position With Company (Title):

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APPENDIX E

CERTIFICATE OF ACCEPTANCE MECH-14A	Col2
Distributed Energy Storage DX AC Systems Acceptance (Page 2 of 3)	Distributed Energy Storage DX AC Systems Acceptance (Page 2 of 3)
Project Name/Address:	Project Name/Address:
System Name or Identification/Tag:	System Location or Area Served:

Intent: Verify that the system detects common faults in air handling units and zone terminal units.

Construction Inspection

Instrumentation to perform test includes, but not limited to: a. No special instrumentation is required to perform these tests.
Installation.

Prior to Performance Testing, verify and document the following:  The water tank is filled to the proper level.

 The water tank is sitting on a foundation with adequate structural strength.

 The water tank is insulated and the top cover is in place.

 The DES/DXAC is installed correctly (refrigerant piping, etc.).

 Verify that the correct model number is installed and configured.

A. Functional Testing	Results
Step 1: Simulate no cooling load during a nighttime period by setting system time to between 9:00 p.m. and 6:00 a.m. Raise the space temperature setpoint above the current space temperature. Verify and document the following:	Step 1: Simulate no cooling load during a nighttime period by setting system time to between 9:00 p.m. and 6:00 a.m. **Raise the space temperature setpoint above the current space temperature.

§ 4.420 Medium relevance — show source text
410|≥4.420|NA|AHRI
550/590| |Water
source
electri-
cally
operated
positive
displace-
ment|<75|≤0.7885
FL
≤0.6316
IPLV.IP|≤0.7875
FL
≤0.5145
IPLV.IP|75/655|NA|NA|NA|≥3.550|NA|NA|NA|6.150|6.150| |Water
source
electri-
cally
operated
positive
displace-
ment|≥75
and
<150|≤0.7579
FL
≤0.5895
IPLV.IP|≤0.7140
FL
≤0.4620
IPLV.IP|54/445|≥4.640|≥3.680|≥2.680|NA|≥8.330|≥6.410|≥4.420|NA|NA| |Water
source
electri-
cally
operated
positive
displace-
ment|≥75
and
<150|≤0.7579
FL
≤0.5895
IPLV.IP|≤0.7140
FL
≤0.4620
IPLV.IP|75/655|NA|NA|NA|≥3.550|NA|NA|NA|6.150|6.150| |Water
source
electri-
cally
operated
positive
displace-
ment|≥150
and
<300|≤0.6947
FL
≤0.5684
IPLV.IP|≤0.7140
FL
≤0.4620
IPLV.IP|54/445|≥4.640|≥3.680|≥2.680|NA|≥8.330|≥6.410|≥4.420|NA|NA| |Water
source
electri-
cally
operated
positive
displace-
ment|≥150
and
<300|≤0.6947
FL
≤0.5684
IPLV.IP|≤0.7140
FL
≤0.4620
IPLV.IP|75/655|NA|NA|NA|≥3.550|NA|NA|NA|6.150|6.150| |Water
source
electri-
cally
operated
positive
displace-
ment|≥300
and
<600|≤0.6421
FL
≤0.5474
IPLV.IP|≤0.6563
FL
≤0.4305
IPLV.IP|54/445|≥4.930|≥3.960|≥2.970|NA|≥8.900|≥6.
§ 160.3 Medium relevance — show source text
(d) Mechanical acceptance testing.
1. Common areas. Before an occupancy permit is granted, the following systems and equipment serving multifamily common areas shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified by Reference Nonresidential Appendix NA7. These systems and equipment shall also comply with the applicable requirements of Section
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MULTIFAMILY BUILDINGS—MANDATORY REQUIREMENTS

160.3(d)3. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the equipment and systems meet the acceptance requirements: A. Outdoor air ventilation systems shall be tested in accordance with NA7.5.1. B. Constant volume, single zone air conditioning and heat pump unit controls shall be tested in accordance with NA7.5.2. C. Duct systems shall be tested in accordance with NA7.5.3 where either: a. They are new duct systems; or b. They are part of an altered system. D. Air economizers, DOAS, HRV or ERV systems shall be tested in accordance with NA7.5.4. Exception to Section 160.3(d)1D: Air economizers installed by the HVAC system manufacturer and certified to the Commission as being factory calibrated and tested are not required to comply with the Functional Testing section of the Air Economizer Controls acceptance test as described in NA7.5.4.2. E. Demand control ventilation systems required by Section 160.2(c)3 shall be tested in accordance with NA7.5.5. F. Supply fan variable flow controls shall be tested in accordance with NA7.5.6. G. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9. H. Boilers or chillers that require isolation controls as specified by Section 170.2(c)4Iii or 170.2(c)4Iiii shall be tested in accordance with NA7.5.7.

I. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.

J. Automatic demand shed controls shall be tested in accordance with NA7.5.10.

K. Fault detection and diagnostics (FDD) for packaged direct expansion units shall be tested in accordance with NA7.5.11. L. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.

M. Distributed energy storage DX AC systems shall be tested in accordance with NA7.5.13. N. Thermal energy storage (TES) systems shall be tested in accordance with NA7.5.14. O. Supply air temperature reset controls shall be tested in accordance with NA7.5.15. P. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.

Q. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.
§ 12-72 Medium relevance — show source text
1. Endurance test consisting of 40,000 cycles of coded or noncoded signal impulses at rated load and voltage.
2. Dielectric strength test without breakdown by application of 60 cycle a.c. at twice rated voltage plus 1,000 volts for a period not less than 1 minute.
(b) Acceptance criteria. There shall be no electrical or mechanical failure, nor any undue pitting, burning or welding of contact during any test.

SEMICONDUCTOR TESTS

Sec. 12-72-106.

(a) General. Semiconductors shall be investigated to determine their suitability for application under all the environmental conditions to which they will be exposed in service.

The performance tests of the complete device are intended to show the effects of these conditions. The prescribed tests may be supplemented where conditions exceeding those represented by the tests indicated herein may be encountered.

(b) Test procedure.
1. Temperature. The system combination is to be connected as in the normal operation test and operated in an oven at 85°C. It is then to be operated in a refrigerator at 0°C. After temperature equilibrium has been maintained in both cases, the unit shall operate as in the normal operation test.
2. Humidity. The system combination is to be connected as in the normal operation test, and placed in a humidity cabinet maintained at 85 percent humidity, 32°C, for a period of 48 hours. At the end of this time, the unit shall operate as in the normal operation test.
3. Transient voltage. The system combination shall be subjected to the transient voltages caused by the collapse of the field of a 2-kilovolt-ampere transformer switched on and off on a random basis for 500 cycles.
4. Acceptance criteria. There shall be no adverse effects on the system combination and the unit shall operate as intended.
(c) Temperature. A semiconductor shall be operated so as to obtain not more than 75 percent of its rated operating temperature during the normal supervisory condition indicated in Section 12-72-103 (b), Item 5. The rated operating temperature of a semiconductor shall not be exceeded under any condition of operation of the complete unit which produces the maximum temperature dissipation of its components, including the over-voltage test described in Section 12-72-103 (k), Items 1 and 2, and the variable ambient temperature test described in Section 12-72-106 (b), Item 1.

ELECTRICAL RATING

Sec. 12-72-107. The electrical rating of a control unit or combination signaling system shall be marked as provided in Section 12-72102 (b). The following ratings shall be marked on the nameplate or may be marked on supplemental labels at the terminal strips:

(a) Each power supply circuit—the voltage, frequency and maximum input in amperes or watts.

(b) Each alarm initiating circuit—maximum current output and maximum open-circuit voltage if different than the power supply circuit.

(c) Each control unit audible alarm or indicating circuit—maximum current output and the maximum open-circuit voltage if different than the power supply circuit.

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PROTECTIVE SIGNALING SYSTEMS

(d) Each combination signaling system sound reproducing control audible alarm circuit-output rating in watts.

(e) Supplementary—device circuit—maximum current load that may be connected, and the voltage and frequency of supply power other than that of the control unit.

§ 805.15.2 Medium relevance — show source text

Verify that the TES system starts charging (storing energy). This shall be checked by verifying flow and inlet and outlet temperatures of the storage tank, or directly by reading an inventory meter where the system has one.

Step 3: Force the time to be between 6:00 p.m. and 9:00 p.m., and simulate a partial charge on the tank. Simulate a cooling load by setting the indoor temperature setpoint lower than the ambient temperature. Verify that the TES system starts discharging. This shall be checked by observing tank inlet and outlet temperatures and system flow, or directly by reading an inventory meter where the system has one. Where the system has no charge, verify that the system will still attempt to meet the load through storage.

Step 4: Force the time to be between noon and 6:00 p.m., and simulate a cooling load by lowering the indoor air temperature setpoint below the ambient temperature. Verify that the tank starts discharging and the compressor is off.

Step 5: Force the time to be between 9:00 a.m. to noon, and simulate a cooling load by lowering the indoor air temperature setpoint below the ambient temperature. Verify that the tank does not discharge and the cooling load is met by the compressor.

Step 6: Force the time to be between 9:00 p.m. and 9:00 a.m. and simulate a full tank charge. This can be done in a couple of ways:

(1) By changing the inventory sensor limit that indicates tank capacity to the energy management system so that it indicates a full tank.

(2) By resetting the coolant temperature that indicates a full charge to a higher temperature than the current tank leaving temperature. Verify that the tank charging is stopped.

Step 7: Force the time to be between noon and 6:00 p.m. and simulate no cooling load by setting the indoor temperature setpoint above the ambient temperature. Verify that the tank does not discharge and the compressor is off.

E 805.15.2 Acceptance Criteria. Thermal energy storage (TES) system acceptance criteria shall be as follows:

(1) Verify that the system is able to charge the storage tank during off-peak periods where there is no cooling load.

(2) Verify that tank discharges during on-peak cooling periods.

(3) Verify that the compressor does not run and the tank does not discharge where there is no cooling demand during on-peak periods.

(4) Verify that the system does not operate during a morning shoulder period where there is no cooling demand.

(5) Verify that the system operates in direct mode (with compressor running) during the morning shoulder time period.

E 806.0 Certificate of Acceptance Forms.

E 806.1 General. This section includes the certificate of acceptance forms referenced in Section E 804.0.

492 2025 CALIFORNIA MECHANICAL CODE

APPENDIX E

CERTIFICATE OF ACCEPTANCE MECH-2A	Col2
Outdoor Air Acceptance (Page 1 of 3)	Outdoor Air Acceptance (Page 1 of 3)
Project Name/Address:	Project Name/Address:
System Name or Identification/Tag:	System Location or Area Served:

§ 13.3 Medium relevance — show source text
CERTIFIED TO THE ENERGY COMMISSION means, when used in association with appliances, certified under Section 1606 of Title 20 of the California Code of Regulations; and otherwise means certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that all the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable provisions of Part 6; and if applicable that the equipment, product or device was tested under the applicable test method specified in Part 6.

CERTIFYING ORGANIZATION is an independent organization recognized by the Commission to certify manufactured devices for performance values in accordance with procedures adopted by the Commission.

CIE 13.3 is the International Commission on Illumination (Commission Internationale de l’Eclairage) document titled “Method of Measuring and Specifying Colour Rendering Properties of Light Sources,” 1995 (CIE 13.3-1995).

CIE 15 is the International Commission on Illumination (Commission Internationale de l’Eclairage) document titled “Technical Report: Colorimetry,” 2018 (CIE 15:2018).

CIRCULATING FAN means a fan that is not a ceiling fan, but that is used to move air within a space that has no provision for connection to ducting or separation of the fan inlet from its outlet, and designed to be used for the general circulation of air.

CLIMATE ZONES are the 16 geographic areas of California for which the commission has established typical weather data, prescriptive packages and energy budgets. Climate zones are defined by ZIP code and listed in Reference Joint Appendix JA2. FIGURE 100.1-A is an approximate map of the 16 climate zones.

CLOSED-CIRCUIT COOLING TOWER is a cooling tower that utilizes indirect contact between a heated fluid, typically water or glycol, and the cooling atmosphere to transfer the source heat load through sensible heat, latent heat and mass transfer indirectly to the air, essentially combining a heat exchanger and cooling tower into an integrated and relatively compact device.

CODES, CALIFORNIA HISTORICAL BUILDING CODE is the California Historical Building Code, California Code of Regulations, Title 24, Part 8 and Part 2 (Chapter 34).

CODES, CBC is the 2025 California Building Code.

CODES, CEC is the 2025 California Electrical Code.

CODES, CFC is the 2025 California Fire Code.

CODES, CMC is the 2025 California Mechanical Code.

CODES, CPC is the 2025 California Plumbing Code.

COEFFICIENT OF PERFORMANCE (COP), COOLING is the ratio of the rate of net heat removal to the rate of total energy input, calculated under designated operating conditions and expressed in consistent units, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 110.2.

COEFFICIENT OF PERFORMANCE (COP), HEATING is the ratio of the rate of net heat output to the rate of total energy input, calculated under designated operating conditions and expressed in consistent units, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 110.2.

COEFFICIENT OF PERFORMANCE (COP), HEAT PUMP is the ratio of the rate of useful heat output delivered by the complete heat pump unit (exclusive of supplementary heating) to the corresponding rate of energy input, in consistent units and as determined using the applicable test method in Appliance Efficiency Regulations or Section 110.2.
§ 6.4. Medium relevance — show source text
1. Outdoor lighting controls shall be tested in accordance with Reference Nonresidential Appendix NA7.8; and
2. Lighting systems receiving the Institutional Tuning Power Adjustment Factor shall be tested in accordance with Reference Nonresidential Appendix NA7.6.4.
3. Demand responsive controls required to control controlled receptacles shall be tested in accordance with Reference Nonresidential Appendix NA7.6.5.
(b) Lighting control installation certificate requirements. To be recognized for compliance with Part 6 an installation certificate shall be submitted in accordance with Section 10-103(a) for any lighting control system, energy management control system, interlocked lighting system, lighting power adjustment factor, or additional wattage available for a videoconference studio, in accordance with the following requirements, as applicable:
1. Certification that when a lighting control system is installed to comply with lighting control requirements in Part 6 it complies with the applicable requirements of Section 110.9; and complies with Reference Nonresidential Appendix NA7.7.1.
2. Certification that when an energy management control system is installed to function as a lighting control required by Part 6 it functionally meets all applicable requirements for each application for which it is installed, in accordance with Sections 110.9, 130.0 through 130.5, 140.6 through 150.0, and 150.2; and complies with Reference Nonresidential Appendix NA7.7.2.
3. Reserved.
4. Reserved.
5. Certification that interlocked lighting systems used to serve an approved area comply with Section 140.6(a)1; and comply with Reference Nonresidential Appendix NA7.7.4.
6. Certification that lighting controls installed to earn a lighting power adjustment factor (PAF) comply with Section 140.6(a)2; and comply with Reference Nonresidential Appendix NA7.7.5.
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NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—MANDATORY REQUIREMENTS FOR LIGHTING SYSTEMS AND EQUIPMENT, AND ELECTRICAL POWER DISTRIBUTION SYSTEMS
1. Certification that additional lighting wattage installed for a videoconference studio complies with Section 140.6(c)2Gvii; and complies with Reference Nonresidential Appendix NA7.7.6.
(c) When certification is required by Title 24, Part 1, Section 10-103.1, the acceptance testing specified by Section 130.4 shall be performed by a certified lighting controls acceptance test technician (CLCATT). If the CLCATT is operating as an employee, the CLCATT shall be employed by a certified lighting controls acceptance test employer. The CLCATT shall disclose on the Certificate of Acceptance a valid CLCATT certification identification number issued by an approved acceptance test technician certification provider. The CLCATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

Note: Authority cited: Sections 25402, 25402.1 and 25213, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code .

SECTION 130.5—ELECTRICAL POWER DISTRIBUTION SYSTEMS
§ 430.2. Medium relevance — show source text
CARBON DIOXIDE ENRICHMENT is injection of additional carbon dioxide into controlled environment horticulture spaces for the purpose of stimulating plant growth.

CASCADE REFRIGERATION SYSTEM is a type of refrigeration system that uses a low-stage refrigeration system where the heat rejected from condensing the low-stage refrigerant is absorbed using a heat-exchanger by a separate high-stage refrigeration system, and the ultimate heat rejection to ambient air is accomplished by the high-stage refrigeration system.

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ALL OCCUPANCIES—GENERAL PROVISIONS

CATHEDRAL CEILING is an exterior partition with a slope less than 60 degrees from horizontal that is created by applying the ceiling directly to the underside of the roof framing members and applying structural roof sheathing directly to the top of the roof framing members/rafters. It may be flat or sloped and vented or unvented.

CEILING FAN means a nonportable device that is suspended from a ceiling or overhead structure for circulating air via the rotation of fan blades as defined in 10 CFR 430.2.

CENTRAL FAN VENTILATION COOLING SYSTEM (CFVCS) is a ducting arrangement including outside air ducts, motorized dampers and an automatic control system that allows a residential space-conditioning system central fan and ducts to distribute outside air throughout a residential dwelling unit, intending to reduce or eliminate the need for mechanical cooling.

CERTIFIED TO THE ENERGY COMMISSION means, when used in association with appliances, certified under Section 1606 of Title 20 of the California Code of Regulations; and otherwise means certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that all the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable provisions of Part 6; and if applicable that the equipment, product or device was tested under the applicable test method specified in Part 6.

CERTIFYING ORGANIZATION is an independent organization recognized by the Commission to certify manufactured devices for performance values in accordance with procedures adopted by the Commission.

CIE 13.3 is the International Commission on Illumination (Commission Internationale de l’Eclairage) document titled “Method of Measuring and Specifying Colour Rendering Properties of Light Sources,” 1995 (CIE 13.3-1995).

CIE 15 is the International Commission on Illumination (Commission Internationale de l’Eclairage) document titled “Technical Report: Colorimetry,” 2018 (CIE 15:2018).

CIRCULATING FAN means a fan that is not a ceiling fan, but that is used to move air within a space that has no provision for connection to ducting or separation of the fan inlet from its outlet, and designed to be used for the general circulation of air.

CLIMATE ZONES are the 16 geographic areas of California for which the commission has established typical weather data, prescriptive packages and energy budgets. Climate zones are defined by ZIP code and listed in Reference Joint Appendix JA2. FIGURE 100.1-A is an approximate map of the 16 climate zones.
§ 209.1 Medium relevance — show source text
1. Certifies that automatic daylighting controls meet the applicable requirements of Sections A6.209.1 and A6.209.2.3.2.4.
2. Certifies that when a multilevel astronomical time switch is used to meet Exception 3 to Section A6.209.2.3.2.2 all general lighting in the skylit area is controlled by a multilevel astronomical time switch that meets the applicable requirements of Section A6.209.1 and that has an override switch that meets the requirements of Section A209.2.4.2.
3. Certifies that lighting controls meet the requirements of Sections A6.209.2.1 through A6.209.2.3 and Title 24, Part 6, Sections 131(e) and (f) and 146(a)2, as applicable.
4. Certifies that automatic lighting controls meet the applicable requirements of Sections A6.209.1 and A6.209.2.4.
5. Certifies that occupant-sensors meet the applicable requirements of Sections A6.209.1 and A6.209.2.4.
6. Certified that outdoor lighting controls meet the applicable requirements of Sections A6.209.1 and A6.209.3.
SECTION A6.210 [OSHPD 1, 2 & 4]—APPLIANCES

A6.210.1 Appliances regulated by the Appliance Efficiency Regulations. Any appliance for which there is a California standard established in the Appliance Efficiency Regulations may be installed only if the manufacturer has certified to the Commission, as specified in those regulations, that the appliance complies with the applicable standard for that appliance.

Note: For certified appliances, go to www.energy.ca.gov/appliances/database/.

DIVISION A6.4 – MATERIAL CONSERVATION AND RESOURCE EFFICIENCY

SECTION A6.401—GENERAL

A6.401.1 Scope. The provisions of this chapter shall outline means of achieving material conservation and resource efficiency through reuse of existing building stock and materials; use of recycled, regional, rapidly renewable and certified wood materials; and employment of techniques to reduce pollution through recycling of materials.

SECTION A6.407 [OSHPD 1, 2 & 4]—WATER RESISTANCE AND MOISTURE MANAGEMENT

A6.407.3 Weather protection. Provide a weather-resistant exterior wall and foundation envelope as required by California Building Code Section 1403.2 and California Energy Code Section 150, manufacturer’s installation instructions or local ordinance, whichever is more stringent.

A6.407.4 Moisture control. Employ moisture control measures by the following methods.

A6.407.4.1 Sprinklers. Design and maintain landscape irrigation systems to prevent spray on structures.

A6.407.4.2 Entries and openings. Design exterior entries and/or openings subject to foot traffic or wind-driven rain to prevent water intrusion into buildings.

Notes:
1. Use features such as overhangs and recesses and flashings integrated with a drainage plane.
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APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]
§ 160.2 Medium relevance — show source text
E. Demand control ventilation systems required by Section 160.2(c)3 shall be tested in accordance with NA7.5.5. F. Supply fan variable flow controls shall be tested in accordance with NA7.5.6. G. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9. H. Boilers or chillers that require isolation controls as specified by Section 170.2(c)4Iii or 170.2(c)4Iiii shall be tested in accordance with NA7.5.7.

I. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.

J. Automatic demand shed controls shall be tested in accordance with NA7.5.10.

K. Fault detection and diagnostics (FDD) for packaged direct expansion units shall be tested in accordance with NA7.5.11. L. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.

M. Distributed energy storage DX AC systems shall be tested in accordance with NA7.5.13. N. Thermal energy storage (TES) systems shall be tested in accordance with NA7.5.14. O. Supply air temperature reset controls shall be tested in accordance with NA7.5.15. P. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.

Q. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.

R. Occupant sensing zone controls shall be tested in accordance with NA7.5.17. 2. Multifamily dwelling units. Before an occupancy permit is granted, the following systems and equipment serving multifamily dwelling units shall be certified as meeting the acceptance requirements for code compliance, as specified by the Reference Nonresidential Appendix NA7. These systems and equipment shall also comply with the applicable requirements of Section 160.3(d)3. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the equipment and systems meet the acceptance requirements: A. Multifamily building central ventilation ducts subject to Section 160.2(b)2C shall be leak tested in accordance with NA7.18.3.

B. Multifamily building central ventilation system heat recovery or energy recovery systems in multifamily buildings with four or more habitable stories shall be tested in accordance with NA7.18.4.
1. When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 160.3(d)1 and 2 shall be performed by a Certified Mechanical Acceptance Test Technician (CMATT). If the CMATT is operating as an employee, the CMATT shall be employed by a Certified Mechanical Acceptance Test Employer. The CMATT shall disclose on the Certificate of Acceptance a valid CMATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CMATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.
TABLE 160.3-A—RETURN DUCT SIZING FOR SINGLE RETURN DUCT SYSTEMS Col2 Col3

Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend.
§ 5.6. Medium relevance — show source text
1. Supply fan variable flow controls shall be tested in accordance with NA7.5.6.
2. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9.
3. Boiler or chillers that require isolation controls as specified by Section 140.4(k)2 or 140.4(k)3 shall be tested in accordance with NA7.5.7.
4. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.
5. Automatic demand shed controls shall be tested in accordance with NA7.5.10.
6. Fault Detection and Diagnostics (FDD) for Packaged Direct-Expansion Units shall be tested in accordance with NA7.5.11.
7. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.
8. Distributed Energy Storage DX AC Systems shall be tested in accordance with NA7.5.13.
9. Thermal Energy Storage (TES) Systems shall be tested in accordance with NA7.5.14.
10. Supply air temperature reset controls shall be tested in accordance with NA7.5.15.
11. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.
12. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.
13. Occupant sensing zone controls shall be tested in accordance with NA7.5.17.
14. Conductivity controls and overflow alarms for open and closed-circuit cooling towers shall be tested according to NA7.5.18.
(b) When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 120.5(a) shall be performed by a certified mechanical acceptance test technician (CMATT). If the CMATT is operating as an employee, the CMATT shall

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NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

be employed by a certified mechanical acceptance test employer. The CMATT shall disclose on the certificate of acceptance a valid CMATT certification identification number issued by an approved acceptance test technician certification provider. The CMATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

Note: Authority cited: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402(a)-(b), 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

SECTION 120.6—MANDATORY REQUIREMENTS FOR COVERED PROCESSES

Nonresidential and hotel/motel buildings shall comply with the applicable requirements of Sections 120.6(a) through 120.6(k), and the applicable requirements of Sections 110.2(a) and 120.3.

(a) Mandatory requirements for refrigerated warehouses.
§ 6.4. Medium relevance — show source text
F. Outdoor lighting controls shall be tested in accordance with Reference Nonresidential Appendix NA7.8; and G. Lighting systems receiving the Institutional Tuning Power Adjustment Factor shall be tested in accordance with Reference Nonresidential Appendix NA7.6.4. H. Demand responsive controls required to control controlled receptacles shall be tested in accordance with Reference Nonresidential Appendix NA7.6.5. 2. Lighting control installation certificate requirements. To be recognized for compliance with Part 6, an Installation Certificate shall be submitted in accordance with Section 10-103(a) for any lighting control system, energy management control system, interlocked lighting system, lighting power adjustment factor, or additional wattage available for a videoconference studio, in accordance with the following requirements, as applicable: A. Certification that when a lighting control system is installed to comply with lighting control requirements in Part 6, it complies with the applicable requirements of Section 110.9 and complies with Reference Nonresidential Appendix NA7.7.1.

B. Certification that when an energy management control system is installed to function as a lighting control required by Part 6, it functionally meets all applicable requirements for each application for which it is installed, in accordance with Sections 110.9, 160, 170 and 180, and complies with Reference Nonresidential Appendix NA7.7.2. C. Certification that interlocked lighting systems used to serve an approved area comply with Section 170.2(e)2A and comply with Reference Nonresidential Appendix NA7.7.4. D. Certification that lighting controls installed to earn a lighting power adjustment factor (PAF) comply with Section 170.2(e)2B and comply with Reference Nonresidential Appendix NA7.7.5.

E. Reserved.
1. When certification is required by Title 24, Part 1, Section 10-103.1, the acceptance testing specified by Section 160.5(e) shall be performed by a Certified Lighting Controls Acceptance Test Technician (CLCATT). If the CLCATT is operating as an employee, the CLCATT shall be employed by a Certified Lighting Controls Acceptance Test Employer. The CLCATT shall disclose on the Certificate of Acceptance a valid CLCATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CLCATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.
NOTE: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

SECTION 160.6—MANDATORY REQUIREMENTS FOR ELECTRIC POWER DISTRIBUTION SYSTEMS

Multifamily buildings shall comply with the applicable requirements of Sections 160.6(a) through 160.6(e).

(a) Service electrical metering. Each electrical service or feeder that provides power to the common use areas (interior and exterior) shall have a permanently installed metering system that measures electrical energy use in accordance with Table 160.6-A.

Exception to Section 160.6(a): Service or feeder for which the utility company provides a metering system for the multifamily building that indicates instantaneous kW demand and kWh for a utility-defined period.

232 2025 CALIFORNIA ENERGY CODE
§ 205.1.1.4 Medium relevance — show source text
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

A6.205.1.1.4 Labeling. Fenestration products shall:
1. Have a temporary label (or label certificate for site- built fenestration) meeting the requirements of Section 10111(a)1 of Title 24, Part 1 not to be removed before inspection by the enforcement agency, listing the certified U factor and SHGC and certifying that the air leakage requirements of Section A6.205.1.1.1 are met for each product line; and
2. Have a permanent label (or label certificate for site-built fenestration) meeting the requirements of Section 10111(a)2 of Title 24, Part 1 if the product is rated using NFRC procedures.
A6.205.1.1.5 Fenestration acceptance requirements. Before an occupancy permit is granted, site-built fenestration products in other than low-rise residential buildings shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified by the Reference Nonresidential Appendix NA7 of the California Energy Commission 2008 Building Energy Efficiency Standards for Residential and Nonresidential Buildings to ensure that site-built fenestration meet Standards requirements, including a matching label certificate for each product installed and be readily accessible at the project location. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the fenestration product meets the acceptance requirements.

Exception: Fenestration products removed and reinstalled as part of a building alteration or addition.

A6.205.1.2 Installation of field-fabricated fenestration and exterior doors. Field-fabricated fenestration and field-fabricated exterior doors may be installed only if the compliance documentation has demonstrated compliance for the installation using U factors from Table A6.205.1-A and SHGC values from Table A6.205.1-B. Field-fabricated fenestration and field-fabricated exterior doors shall be caulked between the fenestration products or exterior door and the building and shall be weatherstripped.

Exception: Unframed glass doors and fire doors need not be weatherstripped or caulked.

A6.205.2 Joints and other openings. Joints and other openings in the building envelope that are potential sources of air leakage shall be caulked, gasketed, weatherstripped or otherwise sealed to limit infiltration and exfiltration.

A6.205.3 Insulation and roofing products.

A6.205.3.1 Certification by manufacturers. Any insulation shall be certified by Department of Consumer Affairs, Bureau of Household Good and Services that the insulation conductive thermal performance is approved pursuant to the California Code of Regulations, Title 24, Part 12, Chapters 12-13, Article 3,“Standards for Insulating Material.”

A6.205.3.2 Installation of urea formaldehyde foam insulation. Urea formaldehyde foam insulation may be applied or installed only if:
1. It is installed in exterior side walls; and
2. A four-mil-thick plastic polyethylene vapor barrier or equivalent plastic sheathing vapor barrier is installed between the urea formaldehyde foam insulation and the interior space in all applications.

TABLE 160.3-A—RETURN DUCT SIZING FOR SINGLE RETURN DUCT SYSTEMS	Col2	Col3
Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend.

§ 10-103.1 Medium relevance — show source text

When certification is required by Title 24, Part 1, Section 10-103.1, the acceptance testing specified by Section 160.5(e) shall be performed by a Certified Lighting Controls Acceptance Test Technician (CLCATT). If the CLCATT is operating as an employee, the CLCATT shall be employed by a Certified Lighting Controls Acceptance Test Employer. The CLCATT shall disclose on the Certificate of Acceptance a valid CLCATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CLCATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

NOTE: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

SECTION 160.6—MANDATORY REQUIREMENTS FOR ELECTRIC POWER DISTRIBUTION SYSTEMS

Multifamily buildings shall comply with the applicable requirements of Sections 160.6(a) through 160.6(e).

(a) Service electrical metering. Each electrical service or feeder that provides power to the common use areas (interior and exterior) shall have a permanently installed metering system that measures electrical energy use in accordance with Table 160.6-A.

Exception to Section 160.6(a): Service or feeder for which the utility company provides a metering system for the multifamily building that indicates instantaneous kW demand and kWh for a utility-defined period.

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TABLE 160.6-A—MINIMUM REQUIREMENTS FOR METERING OR SUBMETERING OF ELECTRICAL LOAD	Col2	Col3	Col4	Col5
METERING FUNCTIONALITY	ELECTRICAL SERVICES1 RATED 50 KVA OR LESS	ELECTRICAL SERVICES1 RATED MORE THAN 50 KVA AND LESS THAN OR EQUAL TO 250 KVA	ELECTRICAL SERVICES1 RATED MORE THAN 250 KVA AND LESS THAN OR EQUAL TO 1000 KVA	ELECTRICAL SERVICES1 RATED MORE THAN 1000 KVA
Instantaneous (at the time) kW demand	Required	Required	Required	Required
Historical peak demand (kW)	Not required	Not required	Required	Required
Tracking kWh for a user- definable period	Required	Required	Required	Required
kWh per rate period	Not required	Not required	Not required	Required
1. “Electrical services” applies to the building service-entrance rating or to the submetering service. For a building with submetering, this applies to the submetering service size to the common use areas.	1. “Electrical services” applies to the building service-entrance rating or to the submetering service.

§ 140.1 Medium relevance — show source text

(i) Roofing products solar reflectance and thermal emittance.

In order to meet the requirements of Sections 140.1, 140.2, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I or 150.2(b)2, a roofing product’s thermal emittance and an aged solar reflectance shall be certified and labeled according to the requirements of Section 10-113.

Exception 1 to Section 110.8(i)1: Roofing products that are not certified according to Section 10-113 shall assume the following default aged solar reflectance/thermal emittance values: A. For asphalt shingles: 0.08/0.75 B. For all other roofing products: 0.10/0.75 2. If CRRC testing for an aged solar-reflectance is not available for roofing product, the aged values shall be derived from the CRRC initial values using the equation ρ aged = [0.2 + β[ρ initial - 0.2], where ρ initial = the initial solar reflectance and soiling resistance β is listed by product type in Table 110.8-B.

TABLE 110.8-B—VALUES OF SOILING RESISTANCE β BY PRODUCT TYPE	Col2	Col3
PRODUCT TYPE	CRRC PRODUCT CATEGORY	β
Field-Applied coating	Field-Applied coating	0.65
Other	Not a field-applied coating	0.70

Solar Reflectance Index (SRI), calculated as specified by ASTM E1980-11(2019), may be used as an alternative to thermal emittance and an aged solar reflectance when complying with the requirements of Sections 140.2, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I or 150.2(b)2. SRI calculations shall be based on approach I from Section 6.1.1 of ASTM E1980-11 (2019) using only Equations 1 and 3 and a moderate wind velocity of 2–6 meters per second. The SRI shall be calculated based on the aged solar reflectance value of the roofing products.
Liquid applied roof coatings applied to low-sloped roofs in the field as the top surface of a roof covering shall: A. Be applied across the entire roof surface to meet the dry mil thickness or coverage recommended by the coating manufacturer, taking into consideration the substrate on which the coating is applied; and B. Meet the minimum performance requirements listed in Table 110.8-C or the minimum performance requirements of ASTM C836, D3468, D6083 or D6694, whichever are appropriate to the coating material. Exception 1 to Section 110.8(i)4B: Aluminum- pigmented asphalt roof coatings shall meet the requirements of ASTM D2824 and be installed as specified by ASTM D3805. Exception 2 to Section 110.8(i)4B: Cement- based roof coatings shall contain a minimum of 20 percent cement and shall meet the requirements of ASTM C1583, ASTM D822 and ASTM D5870.

(j) Radiant barrier. A radiant barrier shall have an emittance of 0.05 or less, tested in accordance with ASTM C1371 or ASTM E408, and shall be certified to the Department of Consumer Affairs as required by Title 24, Part 12, Chapter 12-13, Standards for Insulating Material.

§ 100.0 Medium relevance — show source text
Exception 1 to Section 100.0(f): If one occupancy constitutes at least 80 percent of the conditioned floor area of the building, the entire building envelope, HVAC and water heating may be designed to comply with the provisions of Part 6 applicable to that occupancy, provided that the applicable lighting requirements in Sections 140.6 through 140.8, 150.0(k), or 160.5 and 170.2(e) are met for each occupancy and space, and mandatory measures in Sections 110.0 through 130.5, 150.0, and 160.0 through 160.9 are met for each occupancy and space.

Exception 2 to Section 100.0(f): If one occupancy constitutes at least 90 percent of the combined conditioned plus unconditioned floor area of the building, the entire building indoor lighting may be designed to comply with only the lighting provisions of Part 6 applicable to that occupancy.

(g) Administrative requirements. Administrative requirements relating to permit requirements, enforcement by the Commission, locally adopted energy standards, interpretations, claims of exemption, approved calculation methods, rights of appeal, and certification and labeling requirements of fenestration products and roofing products are specified in California Code of Regulations, Title 24, Part 1, Sections 10-101 to 10-114.

(h) Certification requirements for manufactured equipment, products and devices. Part 6 limits the installation of manufactured equipment, products and devices to those that have been certified as specified by Sections 110.0 and 110.1. Requirements for manufactured equipment, products, and devices, when not specified in Title 24 Part 6, are specified in California Code of Regulations, Title 20, Sections 1601–1609.

Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code .

SECTION 100.1 — DEFINITIONS AND RULES OF CONSTRUCTION

(a) Rules of Construction.
1. Where the context requires, the singular includes the plural and the plural includes the singular.
2. The use of “and” in a conjunctive provision means that all elements in the provision must be complied with or must exist to make the provision applicable. Where compliance with one or more elements suffices, or where existence of one or more elements makes the provision applicable, “or” (rather than “and/or”) is used.
3. “Shall” is mandatory and “may” is permissive.
(b) Definitions. Terms, phrases, words and their derivatives in Part 6 shall be defined as specified in Section 100.1. Terms, phrases, words and their derivatives not found in Section 100.1 shall be defined as specified in the “Definitions” chapters of Title 24, Parts 1 through 5 of the California Code of Regulations. Where terms, phrases, words and their derivatives are not defined in any of the references above, they shall be defined as specified in Webster’s Third New International Dictionary of the English Language, Unabridged (1961 edition, through the 2002 addenda), unless the context requires otherwise.
§ 205.3.7.1 Medium relevance — show source text
Horizontal insulation from the outside
edge of the vertical insulation extending 4 feet toward the center of the
slab in a direction normal to the outside of the building in plan view.|1 – 15|5| |Between heated slab
and outside founda-
tion wall|Vertical and
Horizontal|Vertical insulation from top of slab at inside edge of outside wall down to
the top of the horizontal insulation. Horizontal insulation from the outside
edge of the vertical insulation extending 4 feet toward the center of the
slab in a direction normal to the outside of the building in plan view.|16|10 vertical
and 7
horizontal|

A6.205.3.7.1 Insulation materials in ground contact must:

A6.205.3.7.1.1 Comply with the certification requirements of Section A6.205.3.1; and

A6.205.3.7.1.2 Have a water absorption rate for the insulation material alone without facings that is no greater than 0.3 percent when tested in accordance with Test Method A – 24 Hour-Immersion of ASTM C272.

A6.205.3.7.2 Insulation installation must:

A6.205.3.7.2.1 Cover the insulation with a solid guard that protects against damage from ultraviolet radiation, moisture, landscaping operation, equipment maintenance and wind; and

A6.205.3.7.2.2 Include a rigid plate, which penetrates the slab and blocks the insulation from acting as a conduit for insects from the ground to the structure above the foundation.

A6.205.3.8 Wet insulation systems. When insulation is installed on roofs above the roofing membrane or layer used to seal the roof from water penetration, the effective R-value of the insulation shall be as specified in Reference Joint Appendix JA4 of the California Energy Commission 2008 Building Energy Efficiency Standards for Residential and Nonresidential Buildings.

A6.205.3.9 Roofing products solar reflectance and thermal emittance.

A6.205.3.9.1 In order to meet the requirements of Sections 141, 142, 143(a)1, 149(b)1B, 151(f)12, 152(b)1H or 152(b)2 of Title 24, Part 6, a roofing product’s thermal emittance and 3-year aged solar reflectance shall be certified and labeled according to the requirements of Section 10-113 of Title 24, Part 1.

Exception: Roofing products that are not certified according to Section 10-113 of Title 24, Part 1 shall assume the following default aged reflectance/emittance values:

A6.205.3.9.1.1 For asphalt shingles, 0.08/0.75

A6.205.3.9.1.2 For all other roofing products, 0.10/ 0.75

§ 10-113. Medium relevance — show source text

Solar reflectance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, Section 10-113.

TABLE A4.106.5.1—VALUES OF SOILING RESISTANCE (ß) BY PRODUCT TYPE	Col2	Col3
PRODUCT TYPE	CCRC PRODUCT CATEGORY	ß
Field-applied coating	Field-applied coating	0.65
Other	Not a field-applied coating	0.70

A4.106.5.2 Thermal emittance. Roofing materials shall have a CRRC initial or aged thermal emittance equal to or greater than those specified in Tables A4.106.5.1(1) and A4.106.5.1(3) for Tier 1 and Tables A4.106.5.1(2) and A4.106.5.1(4) for Tier 2.

Thermal emittance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, California Administrative Code.

A4.106.5.3 Solar reflectance index alternative. Solar Reflectance Index (SRI) equal to or greater than the values specified in Tables A4.106.5.1(1) and A4.106.5.1(3) for Tier 1 and Tables A4.106.5.1(2) and A4.106.5.1(4) for Tier 2 may be used as an alternative to compliance with the 3-year aged solar reflectance values and thermal emittance.

SRI values used to comply with this section shall be calculated using the Solar Reflectance Index (SRI) Calculation Worksheet (SRI-WS) developed by the California Energy Commission or in compliance with ASTM E1980-01 as specified in the 2022 California Energy Code. Solar reflectance values used in the SRI-WS shall be based on the aged reflectance value of the roofing product or the equation in Section A4.106.5.1 if the CRRC certified aged solar reflectance are not available. Certified thermal emittance used in the SRI-WS may be either the initial value or the aged value listed by the CRRC.

Solar reflectance and thermal emittance may also be certified by other supervisory entities approved by the Commission pursuant to Title 24, Part 1, California Administrative Code.

Note: The Solar Reflectance Index Calculation Worksheet (SRI-WS) is available by contacting the Energy Standards Hotline at 1-800-772-3300, website at www.energy.ca.gov or by email at Title24@energy.ca.gov.

TABLE A4.106.5.1(1)—TIER 1 – LOW-RISE RESIDENTIAL	Col2	Col3	Col4	Col5
ROOF SLOPE	CLIMATE ZONE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	SRI
≤ 2:12	13 & 15	0.63	0.75	75
> 2:12	10 – 15	0.20	0.75	16

§ 205.3.7.2.1 Medium relevance — show source text
A6.205.3.7.2.1 Cover the insulation with a solid guard that protects against damage from ultraviolet radiation, moisture, landscaping operation, equipment maintenance and wind; and

A6.205.3.7.2.2 Include a rigid plate, which penetrates the slab and blocks the insulation from acting as a conduit for insects from the ground to the structure above the foundation.

A6.205.3.8 Wet insulation systems. When insulation is installed on roofs above the roofing membrane or layer used to seal the roof from water penetration, the effective R-value of the insulation shall be as specified in Reference Joint Appendix JA4 of the California Energy Commission 2008 Building Energy Efficiency Standards for Residential and Nonresidential Buildings.

A6.205.3.9 Roofing products solar reflectance and thermal emittance.

A6.205.3.9.1 In order to meet the requirements of Sections 141, 142, 143(a)1, 149(b)1B, 151(f)12, 152(b)1H or 152(b)2 of Title 24, Part 6, a roofing product’s thermal emittance and 3-year aged solar reflectance shall be certified and labeled according to the requirements of Section 10-113 of Title 24, Part 1.

Exception: Roofing products that are not certified according to Section 10-113 of Title 24, Part 1 shall assume the following default aged reflectance/emittance values:

A6.205.3.9.1.1 For asphalt shingles, 0.08/0.75

A6.205.3.9.1.2 For all other roofing products, 0.10/ 0.75

A6.205.3.9.2 If CRRC testing for 3-year aged reflectance is not available for any roofing products, the 3-year aged value shall be derived from the CRRC initial value using the equation R aged = [0.2 + 0.7[ρ initial –0.2], where ρ initial = the initial Solar Reflectance. A6.205.3.9.3 Solar Reflectance Index (SRI), calculated as specified by ASTM E1980-01, may be used as an alternative to thermal emittance and 3-year aged solar reflectance when complying with the requirements of Sections 141, 142, 143(a)1, 149(b)1B, 151(f)12, 152(b)1H or 152(b)2 of Title 24, Part 6. SRI calculations shall be based on moderate wind velocity of 2-6 meters per second. The SRI shall be calculated based on the 3-year aged reflectance value of the roofing products.

A6.205.3.9.4 Liquid applied roof coatings applied to low-sloped roofs in the field as the top surface of a roof covering shall:

2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-7

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APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

A6.205.3.9.4.1 Be applied across the entire roof surface to meet the dry mil thickness or coverage recommended by the coating manufacturer, taking into consideration the substrate on which the coating is applied, and
§ 110.3 Medium relevance — show source text
K

kBtu/Hour 110.3(c)6, 150.0(n)4, 160.4(d) Kelvin 140.6(a)4B, 170.2(e)2D Kitchen Exhaust system 140.9(b) Local mechanical exhaust 150.0(o)2B, 150.2(b)1M, 160.2(b)2B, 180.2(b)5B Range hood 150.0(k)1A, 150.0(o)1G, 160.2(b)2A Range Hood Airflow Rates (CFM) and ASTM E3087 Capture Efficiency (CE) Ratings According to Dwelling

Unit Floor Area and Kitchen Range Fuel Type Table 150.0-G, Table 160.2-G

L

Label Certificate 10-111(a-b), 10-111(d)11, 110.6(a)5B, 110.6(a)6 Labeling 10-111, 10-113, 100.0(g), 110.6(a)5, 150.0(m)12E, 150.0(m)13A, 150.0(m)6, 160.2(b)1E, 160.5(b)5F, 160.3(b)5L Laboratory 10-103.1(c)3B, 10-103.2(c)3B, Table 120.1-C, 120.4(b)1A, Table 140.4-B, 140.4(q), Table 140.6-C, 140.9(c), Table 140.9-D, 141.1(a), 150.0(m)2A, 160.3(b)5B, 160.3(c)2C, Table 170.2-C, 170.2(c)4O Landscaping 110.8(g)2A Large Enclosed Space 140.3(c), 170.2(b) Leakage Rate 120.4(g), 140.3(a)9C, 140.4(e)2D, 141.0(b)2D, 141.0(b)2Q, 150.0(m)11, 150.0(o)1C, 150.1(b)3, 160.3(b)5K, 160.3(c)2H, 170.1(d)2H, 170.2(c)4C, 180.2(b)2B Leakage Testing 120.4(g)2, 141.0(b)2D, 150.0(m)11, 160.3(b)5K, 160.3(c)2H Leaving Air temperature Table 140.4-A Chilled water temperature 110.2(a) Condenser temperature 110.2(a) Evaporator temperature 110.2(a) Fluid temperature Table 110.2-D, 140.4(h) Gas temperature 120.6(a)8, 120.6(b)5 Heating water temperature Table 110.2-N Library Building Spaces 140.4(a)2E-G Light Mass Wall 120.7(b)3, Table 140.3-C, 160.1(b)4 Lighting 10-103.1, 10-114, 100.0(a-f), Table 100.0-A, 110.
§ 160.2 Medium relevance — show source text
If the outdoor airflow for the CFI ventilation system is fan-powered, then the outdoor air fan shall not operate when the required motorized damper(s) on the outdoor air ventilation duct(s) is closed.

d. Variable ventilation. CFI ventilation systems shall incorporate controls that track outdoor air ventilation run time, and either open or close the required motorized damper(s) depending on whether or not outdoor air ventilation is required for compliance with Section 160.2(b)2Aiv. During periods when comfort conditioning is not called for by the space-conditioning thermostat, the CFI ventilation system controls shall operate the space-conditioning system central fan and outdoor air damper(s) when necessary to ensure compliance with the minimum outdoor air ventilation required by Section 160.2(b)2Aiv in accordance with applicable variable mechanical ventilation methods specified in ASHRAE 62.2 Section 4.5.

iii. Air filtration. Air filtration shall conform to the specifications in Section 160.2(b)1. Compliance with ASHRAE 62.2 Sections 6.7 (Minimum Filtration) and 6.7.1 (Filter Pressure Drop) shall not be required. iv. Whole-dwelling unit mechanical ventilation . Multifamily attached dwelling units shall comply with Subsections a and b below.

a. Mechanical ventilation airflow shall be provided at rates greater than or equal to the value determined in accordance with Equation 160.2-B. Total Required Ventilation Rate [ASHRAE 62.2:4.1.1]: (Equation 160.2-B) Q tot = 0.03 A floor + 7.5( N br + 1)

where:

Q tot = total required ventilation rate, cfm. A floor = dwelling-unit floor area, ft [2] . N br = number of bedrooms (not to be less than 1). b. All dwelling units in a multifamily building shall use the same whole-dwelling unit ventilation system type. The dwelling unit shall comply with Subsections 1 and 2 below.
1. Balanced or supply ventilation . A balanced or supply ventilation system shall provide the required whole-dwelling-unit ventilation airflow. Balanced systems with heat recovery or energy recovery that serve a single dwelling unit shall have a fan efficacy of ≤1.0 W/cfm; and
2. Compartmentalization testing. The air leakage rate shall not exceed 0.3 cubic feet per minute at 50 Pa (0.2 inch water) per ft [2] of dwelling unit envelope surface area as confirmed by ECC-Rater field verification and diagnostic testing in accordance with the procedures specified in Reference Appendix RA3.8 or NA2.3 as applicable. In multifamily buildings with four or more habitable stories,
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the field verification and diagnostic testing which requires an ECC-Rater may alternatively be performed by a certified Mechanical Acceptance Test Technician according to the requirements specified in Reference Appendix NA1.9. v. Multifamily building central ventilation system airflow rate tolerance. Multifamily building central ventilation systems that serve multiple dwelling units shall have airflow rates in each dwelling unit served that meet or exceed a design ventilation airflow rate specification.

§ 106.5 Medium relevance — show source text

Exceptions:

The primary driveway, primary entry walkway and entry porch or landing shall not be included when calculating the area required to be a permeable surface.
Required accessible routes for persons with disabilities as required by California Code of Regulations, Title 24, Part 2, Chapter 11A and/or Chapter 11B as applicable.

A4.106.5 Cool roof for reduction of heat island effect. Roofing materials for Tier 1 and Tier 2 buildings shall comply with this section:

Exceptions:

Roof constructions that have a thermal mass over the roof membrane including areas of vegetated (green) roofs, weighing at least 25 pounds per square foot.
Roof areas covered by building integrated solar photovoltaic panels and building integrated solar thermal panels.

A4.106.5.1 Solar reflectance. Roofing materials shall have a minimum 3-year aged solar reflectance equal to or greater than the values specified in Tables A4.106.5.1(1) and A4.106.5.1(3) for Tier 1 and Tables A4.106.5.1(2) and A4.105.5.1(4) for Tier 2.

If CRRC testing for aged solar reflectance is not available for any roofing products, the aged value shall be determined using the Cool Roof Rating Council (CRRC) certified initial value using the equation ρ aged = [0.2 + β[ρ initial -0.2], where ρ initial = the initial Solar Reflectance and soiling resistance, β, is listed by product type in Table A4.106.5.1.

Solar reflectance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, Section 10-113.

TABLE A4.106.5.1—VALUES OF SOILING RESISTANCE (ß) BY PRODUCT TYPE	Col2	Col3
PRODUCT TYPE	CCRC PRODUCT CATEGORY	ß
Field-applied coating	Field-applied coating	0.65
Other	Not a field-applied coating	0.70

Thermal emittance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, California Administrative Code.

§ 110.10 Medium relevance — show source text
110.10(b)3, 110.10(b)4, 120.7(a), 141.0(a)2, 150.0(c), 150.2(b)1I Alterations Table 141.0-C, Table 150.2-C, 180.2(b)1 Area 110.10(b)1, 140.3(a)1, 140.10(a), 141.0(b)2B, 150.1(c), 150.2(b), 170.2(a), 170.2(f), 170.2(g), 180.2(b) Assembly 120.6(h), 120.7(a), Table 150.2-C, 160.1(a) Coatings 10-113(a), 110.8(i)4 Deck 120.7(a), 141.0(b)2B, 150.0(a), Table 150.1-A, 150.1(c)1, Table 150.2-B, 150.2(b)1I, 160.1(a), Table 170.2-A, 170.2(a), Table 180.2-A Insulation 140.3(a)1, 141.0(b)1A, 150.1(c)1, 150.1(c)9, 150.2(a)1B, 160.1(a), 170.2(a)1 Low-sloped 110.10(b)1A, 110.10(b)1B, 110.8(i)4, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I, 180.2(b)1

Membrane 110.8(h), 140.3(a)1, 141.0(b)2B Rafters 150.1(c)1, 170.2(a) Replacement 141.0(b)2B, 150.2(b), 180.2(b) Steep-sloped 110.10(b)1A, 110.10(b)1B, 110.10(b)2, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I, 180.2(b)1 Surface 110.8(i)4 Roof/Ceiling Insulation 120.7(a), Table 140.3, Table 141.0-B, 141.0(b), Table 141.0-E, 180.2(a), Table 180.2-A, 180.2(a), 180.2(b)1 Roof/Ceiling Insulation Tradeoff 140.3(a)1, Table 140.3, Table 141.0-B, Table 141.0-E, Table 180.2-A Roof/ceiling Insulation Tradeoff for Aged Solar Reflectance –Nonresidential Buildings Table 140.3 Roof/ceiling Insulation Tradeoff for Low- sloped Aged Solar Reflectance Table 141.0-B, Table 180.2-A Roofing 10.113(a), 10-113(b), 10-113(c), 10113(d), 110.8(h), 140.3(a), Table 140.3-A, 141.0(b), Table 150.1-A, 150.1(c)11, 150.2(a),
§ 140.3 Medium relevance — show source text
140.3(a)1, 141.0(b)2B Rafters 150.1(c)1, 170.2(a) Replacement 141.0(b)2B, 150.2(b), 180.2(b) Steep-sloped 110.10(b)1A, 110.10(b)1B, 110.10(b)2, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I, 180.2(b)1 Surface 110.8(i)4 Roof/Ceiling Insulation 120.7(a), Table 140.3, Table 141.0-B, 141.0(b), Table 141.0-E, 180.2(a), Table 180.2-A, 180.2(a), 180.2(b)1 Roof/Ceiling Insulation Tradeoff 140.3(a)1, Table 140.3, Table 141.0-B, Table 141.0-E, Table 180.2-A Roof/ceiling Insulation Tradeoff for Aged Solar Reflectance –Nonresidential Buildings Table 140.3 Roof/ceiling Insulation Tradeoff for Low- sloped Aged Solar Reflectance Table 141.0-B, Table 180.2-A Roofing 10.113(a), 10-113(b), 10-113(c), 10113(d), 110.8(h), 140.3(a), Table 140.3-A, 141.0(b), Table 150.1-A, 150.1(c)11, 150.2(a), Table 150.2-B, 170.2(a) Roofing Product 10-113(a), 10-113(b), 10113(c), 110.8, 110.8(i)1, 110.8(i)2, 110.8(i)3, 140.3(a), Table 140.3-D, 141.0(b)2B, 150.1(c), Table 150.1-A, Table 150.2-D, 170.2(a)1
§ 914.3.4 Medium relevance — show source text
914.3.4 Automatic smoke detection. Smoke detection shall be provided in accordance with Section 907.2.13.1.

914.3.5 Emergency voice/alarm communication system. An emergency voice/alarm communication system shall be provided in accordance with Section 907.5.2.2.

914.3.6 Emergency responder communication coverage. In-building, two-way emergency responder communication coverage shall be provided in accordance with Section 510.

914.3.7 Fire command. A fire command center complying with Section 508 shall be provided in a location approved by the fire department.

914.3.8 Smoke control.

914.3.8.1 Smoke control system. All portions of high-rise buildings shall be provided with a smoke control system in accordance with California Building Code, Section 909.

914.3.8.2 Smokeproof exit enclosures. Every exit enclosure in high-rise buildings shall comply with California Building Code, Sections 909.20 and 1023.12. Every required stairway in Group I-2 occupancies serving floors more than 75 feet (22 860 mm) above the lowest level of fire department vehicle access shall comply with Sections 909.20 and 1023.12 of the California Building Code.

Exception: In high-rise buildings, exit enclosures serving three or less adjacent floors where one of the adjacent floors is the level of exit discharge.

914.4 Atriums. Atriums shall comply with Sections 914.4.1 and 914.4.2.

914.4.1 Automatic sprinkler system. An approved automatic sprinkler system shall be installed throughout the entire building.

Exceptions:
1. That area of a building adjacent to or above the atrium need not be sprinklered, provided that portion of the building is separated from the atrium portion by not less than a 2-hour fire barrier constructed in accordance with Section 707 of the California Building Code or horizontal assemblies constructed in accordance with Section 711 of the California Building Code, or both.
2. Where the ceiling of the atrium is more than 55 feet (16 764 mm) above the floor, sprinkler protection at the ceiling of the atrium is not required.
914.4.2 Fire alarm system. A fire alarm system shall be provided where required by Section 907.2.14.

914.5 Underground buildings. Underground buildings shall comply with Sections 914.5.1 through 914.5.5.

914.5.1 Automatic sprinkler system. The highest level of exit discharge serving the underground portions of the building and all levels below shall be equipped with an automatic sprinkler system installed in accordance with Section 903.3.1.1. Waterflow switches and control valves shall be supervised in accordance with Section 903.4.1.

914.5.2 Smoke control system. A smoke control system is required to control the migration of products of combustion in accordance with Section 909 and provisions of this section. Smoke control shall restrict movement of smoke to the general area of fire origin and maintain means of egress in a usable condition.

914.5.3 Compartment smoke control system. Where compartmentation is required by Section 405.4 of the California Building Code, each compartment shall have an independent smoke control system. The system shall be automatically activated and capable of manual operation in accordance with Section 907.2.18.
§ 180.2 Medium relevance — show source text
2(b)1I, 180.2(b)1 Surface 110.8(i)4 Roof/Ceiling Insulation 120.7(a), Table 140.3, Table 141.0-B, 141.0(b), Table 141.0-E, 180.2(a), Table 180.2-A, 180.2(a), 180.2(b)1 Roof/Ceiling Insulation Tradeoff 140.3(a)1, Table 140.3, Table 141.0-B, Table 141.0-E, Table 180.2-A Roof/ceiling Insulation Tradeoff for Aged Solar Reflectance –Nonresidential Buildings Table 140.3 Roof/ceiling Insulation Tradeoff for Low- sloped Aged Solar Reflectance Table 141.0-B, Table 180.2-A Roofing 10.113(a), 10-113(b), 10-113(c), 10113(d), 110.8(h), 140.3(a), Table 140.3-A, 141.0(b), Table 150.1-A, 150.1(c)11, 150.2(a), Table 150.2-B, 170.2(a) Roofing Product 10-113(a), 10-113(b), 10113(c), 110.8, 110.8(i)1, 110.8(i)2, 110.8(i)3, 140.3(a), Table 140.3-D, 141.0(b)2B, 150.1(c), Table 150.1-A, Table 150.2-D, 170.2(a)1

Room Air conditioner 110.2(b), 110.2(c) Air conditioner heat pump 110.2(c) Air temperature 140.4(f), 170.2(c)3 Cavity ratio (RCR) 140.6(c)3F, G, 170.2(e)4 Room Cavity Ratio (RCR) Equations Table 170.2-P Rough-In 150.0(m)11 Round-trip Efficiency 140.10(b), 170.2(h) R-Value 110.3(c)3, 110.8(d)1, 110.8(d)2, Table 110.8-A, 110.8(h), 120.3(c), Table 120.3-A, 120.4(c), 120.4(d), 120.4(e), Table 120.6-A, 120.6(a)1, Table 141.0-C, 141.0(b)2B, 150.0(b), 150.0(c), 150.0(d), 150.0(m)4, 150.0(m)5, 150.0(m)6, 150.1(c)1, Table 150.2-A, Table 150.2-B, Table 150.2-C, Table 150.2-D, 150.2(b)2, 160.3(b)5D-F, 160.3(c)1, Table 160.3-D, Table 160.4-A, 170.2(a), 180.1(a), Table 180.2-A, Table 180.2-C

S

Frequently asked questions

How do I find the Energy Commission appliance database listing?

Use the Energy Commission’s appliance database (the Energy Code points to it as the primary source for Title 20 appliances per § 110.1(b)1). The database URL is published by the Commission; search by manufacturer and model.

Is a manufacturer’s sticker on the equipment enough?

No. Only a Commission‑approved label is acceptable as label proof; non‑Commission stickers or marketing labels do not meet § 110.0(b)3(D).

If a product isn’t in the Commission directory, what exactly do I need?

You need a copy of the manufacturer’s application for certification AND the Energy Commission staff letter of acceptance for that application; together these satisfy § 110.0(b)3(B).

Can I accept an industry directory entry?

Yes — but only if the directory is published or approved by the Commission (Part 6 allows Commission‑published or approved directories, and Title 20 defines approved trade association directories). Confirm the directory’s approval status before accepting. § 110.0(b)3(A) and § 110.1(b)3.

Where do I look for product‑specific labeling rules like roofing?

Part 6 refers product labeling (roofing, fenestration) to Title 24, Part 1 labeling rules — for roofing the code explicitly points to Section 10‑113. The Energy Code references this requirement in § 110.8(i). For the exact label format and content, consult § 10‑113 in Title 24, Part 1.

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